# Scrapy settings for tutorial project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     https://docs.scrapy.org/en/latest/topics/settings.html
#     https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
#     https://docs.scrapy.org/en/latest/topics/spider-middleware.html

BOT_NAME = "tutorial"

SPIDER_MODULES = ["tutorial.spiders"]
NEWSPIDER_MODULE = "tutorial.spiders"

ADDONS = {}


# Crawl responsibly by identifying yourself (and your website) on the user-agent
#USER_AGENT = "tutorial (+http://www.yourdomain.com)"

# Obey robots.txt rules
ROBOTSTXT_OBEY = False

# Concurrency and throttling settings
CONCURRENT_REQUESTS = 10
CONCURRENT_REQUESTS_PER_DOMAIN = 5
DOWNLOAD_DELAY = 1

# Disable cookies (enabled by default)
#COOKIES_ENABLED = False

# Disable Telnet Console (enabled by default)
#TELNETCONSOLE_ENABLED = False

# Override the default request headers:
#DEFAULT_REQUEST_HEADERS = {
#    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
#    "Accept-Language": "en",
#}

# Enable or disable spider middlewares
# See https://docs.scrapy.org/en/latest/topics/spider-middleware.html
#SPIDER_MIDDLEWARES = {
#    "tutorial.middlewares.TutorialSpiderMiddleware": 543,
#}

# Enable or disable downloader middlewares
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
DOWNLOADER_MIDDLEWARES = {
   # "tutorial.middlewares.TutorialDownloaderMiddleware": 543,
   # 'tutorial.middlewares.RandomUserAgentMiddleware': 400,
   # 'tutorial.middlewares.ProxyMiddleware': 500,
   # 'tutorial.middlewares.RetryMiddleware': 550,
   # 'tutorial.middlewares.CookieMiddleware':701,
   # 'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware': None,
   #  'tutorial.middlewares.ProxyDownloaderMiddleware': 100,
   #  'tutorial.middlewares.ProxiesPoolMiddleware': 100,
}

# Enable or disable extensions
# See https://docs.scrapy.org/en/latest/topics/extensions.html
#EXTENSIONS = {
#    "scrapy.extensions.telnet.TelnetConsole": None,
#}
DUPEFILTER_DEBUG = True
# Configure item pipelines
# See https://docs.scrapy.org/en/latest/topics/item-pipeline.html
ITEM_PIPELINES = {
   # 'tutorial.pipelines.NovelPipeline': 300,
   # "tutorial.pipelines.TutorialPipeline": 400,
   # "tutorial.pipelines.CSVPipeline": 500,
   # 'tutorial.pipelines.ProducerPipeline': 600,
    'tutorial.pipelines.CsvPipeline': 300,
}
MONGODB_URI = "mongodb://localhost:27017"  # MongoDB 连接字符串
MONGODB_DATABASE = "fanqie_novel"          # 数据库名
MONGODB_COLLECTION_BOOKS = "books"         # 书籍集合名
MONGODB_COLLECTION_CHAPTERS = "chapters"

DOWNLOAD_TIMEOUT = 30
RETRY_TIMES = 2
RETRY_HTTP_CODES = [500, 502, 503, 504, 408, 429, 403]
# Enable and configure the AutoThrottle extension (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/autothrottle.html
AUTOTHROTTLE_ENABLED = False
# The initial download delay
AUTOTHROTTLE_START_DELAY = 1
# The maximum download delay to be set in case of high latencies
AUTOTHROTTLE_MAX_DELAY = 10
# The average number of requests Scrapy should be sending in parallel to
# each remote server
#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
# Enable showing throttling stats for every response received:
#AUTOTHROTTLE_DEBUG = False

# Enable and configure HTTP caching (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
#HTTPCACHE_ENABLED = True
#HTTPCACHE_EXPIRATION_SECS = 0
#HTTPCACHE_DIR = "httpcache"
#HTTPCACHE_IGNORE_HTTP_CODES = []
#HTTPCACHE_STORAGE = "scrapy.extensions.httpcache.FilesystemCacheStorage"

# Set settings whose default value is deprecated to a future-proof value
FEED_EXPORT_ENCODING = "utf-8"
